package pk.sistema.vendas.web.util;


	import java.io.IOException;

	import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

import org.hibernate.SessionFactory;

import pk.sistema.vendas.web.HibernateUtil;

	public class ConexaoHibernateFilter implements Filter {

		private SessionFactory sf;
		
		@Override
		public void destroy() {
				
		}

		@Override
		public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse,
				FilterChain chain) throws IOException, ServletException {
			
			try {
			

				this.sf.getCurrentSession().beginTransaction();
				chain.doFilter(servletRequest, servletResponse);
				this.sf.getCurrentSession().getTransaction().commit();
				this.sf.getCurrentSession().close();
				
			} catch (Throwable ex) {
				try {
					if(this.sf.getCurrentSession().getTransaction().isActive()){
						this.sf.getCurrentSession().getTransaction().rollback();
					}
				} catch (Throwable th) {
					th.printStackTrace();
				}
				throw new ServletException();
			}
			
		}

		@Override
		public void init(FilterConfig conf) throws ServletException {
			this.sf = HibernateUtil.getSessao();
			
		}
		
		

	}